Some firms have been expanding, but are bringing foreign workers here to take advantage of a quirk in the immigration and social security laws. American employers can avoid paying social security, Medicare, and unemployment taxes on certain classes of foreign workers. It has been estimated that there are over half a million of these employees in the country. Depending on the salaries paid to the employees, the savings to the employers can result in thousands of dollars per employee per year. Of course, employing these workers does not decrease our unemployment rate. Actually, these savings, plus the lower wages these foreigners are often willing to accept, encourage employers not to hire U.S. citizens to perform jobs that these foreigners can perform.